Material and Finish
Aluminum case
Size and Weight
46MM
Height: 46mm, Width: 40mm, Depth: 9.7mm
Weight: 39.5 grams
Fits 140–245mm wrists
42MM
Height: 42mm, Width: 37mm, Depth: 9.7mm
Weight: 32.2 grams
Fits 130–200mm wrists
Controls
Digital Crown with haptic feedback, Side button, Single tap, Double tap and wrist flick gestures, Siri powered by Apple Intelligence
Chip
S11 chip with 64‑bit dual-core processor, Audio Intelligence (Live Rewind, Siri Recap, Shazam, Sound Recognition), 4‑core Neural Engine, 64GB capacity
Apple Intelligence and Siri AI
The next generation of Apple Intelligence is centered around you, integrated into your apps, and built with privacy. Apple Intelligence powers Siri AI — an entirely new version of Siri that’s more personal, conversational, and powerful, along with helpful features across apps.
Sensors
Health Sensing System: second‑generation electrical heart sensor, always‑on optical heart sensor, blood oxygen sensor, and temperature sensor
Compass, Always‑on altimeter, High‑g accelerometer, High dynamic range gyroscope, Ambient light sensor, Depth gauge to 6 meters, Water temperature sensor
Health and Wellness
Readiness app
Vitals app with heart rate, respiratory rate, wrist temperature, sleep duration, and heart rate variability (HRV)
Blood Oxygen app, ECG app, Heart Rate app
High and low heart rate notifications
Recovery HRV
High‑frequency background heart rate tracking
Irregular rhythm notifications
Advanced Cycle Tracking app with fertile window estimates, retrospective ovulation estimates, and perimenopause and menopause support
Medications app
Mindfulness app with state of mind tracking
Noise app
Sleep app including sleep stages
Sleep score
Sleep apnea notifications
Hypertension notifications
Display
Always‑On Retina display with wide‑angle OLEDs and LTPO3
1Hz refresh
Active area(42mm): 374 by 446 pixels, 326 pixels per inch
Active area (46mm): 416 by 496 pixels, 326 pixels per inch
Ceramic Shield 2
2000 nits peak brightness
1 nit minimum brightness
Audio
Speaker, Microphone, Media playback
Power and Battery Life
All‑day battery life, up to 24 hours of normal use
Up to 38 hours in Low Power Mode
Up to 10 hours outdoor workout
Built‑in rechargeable lithium‑ion battery
Fast‑charge capable
Up to 80% charge in about 30 minutes
15 minutes for up to 12 hours of normal use
5 minutes for up to 10 hours of sleep tracking
Operating System
watchOS
watchOS is the world’s most advanced wearable operating system, with apps and features designed to keep you active, healthy, safe, and connected.
Workouts and Activity
Running, Hiking, Cycling, Swimming and others
Safety
Emergency SOS, International emergency calling, Crash Detection, Fall Detection, Last Emergency Call Availability Waypoint, Flashlight, Noise monitoring, Backtrack & Check in
Durability
Water resistance 50m (swimproof) under ISO standard 22810:2010
Dust resistance IP6X
Connectivity
All Models, Support for 2.4GHz and 5GHz Wi-Fi networks, Wi-Fi 4 (802.11n), Bluetooth 5.3,
Precision L1 GPS (GPS, GLONASS, Galileo, QZSS, and BeiDou)
Second-generation Ultra Wideband chip, Apple Pay, GymKit
Accessibility
Built‑in accessibility features supporting vision, mobility, hearing, and cognitive disabilities.
Features include:
VoiceOver, Zoom, On/Off Labels, Reduce Transparency, Increase Contrast, Color Filters, Text Size, Bold Text, Reduce Motion, Hourly Chimes, AssistiveTouch, Button Click Speed, Touch Accommodations, Auto-Answer Calls, Type to Siri, RTT Support, Audio Volume Balance, Auto Transcription, Live Speech, Accessibility Shortcut, Mono Audio, Taptic Time, Personal Voice, Live Listen, Sound Recognition
Environmental Requirements
Operating temperature: 32° to 95° F (0° to 35° C)
Nonoperating storage temperature: –4° to 113° F (–20° to 45° C)
Relative humidity: 5% to 90% noncondensing
Operating altitude: 0 feet to 10,000 feet (0m to 3000m)
Compatibility
iPhone 11 or later, including iPhone SE (2nd generation or later), with iOS 27 or later
In the Box
Apple Watch Series 12
Band
Apple Watch Magnetic Fast Charger to USB‑C Cable (1m)
